The Supreme Court is meeting today to consider whether to hear the Trump administration’s appeal of lower court rulings that blocked the president’s controversial travel ban.

Speculation is that the court will agree to hear the case, given the high-profile nature of the president’s executive order and fundamental questions as to whether the administration’s ban amounts to a ban on Muslims entering the country. Four justices need to agree in order for the case to be included on the court’s docket.

The administration has also pushed to reinstate the travel ban temporarily, while the court considers arguments. The revised order, which Trump signed in March, would ban travelers from six Muslim-majority countries from entering the U.S. for 90 days and suspend all refugee admissions for 120 days. The Trump administration has argued that the nation is at greater risk for terrorism with the ban currently blocked from taking effect. Five justices would have to agree to grant a stay of the lower court’s injunction against the ban.

If the justices elect to hear the case, the court must decide whether to extend its term to hear the case this summer or hear the case in the fall.